hanson



(Model.)

o. c. HANSON *sz G1. B. DU-NHAM.

SOLE EDGE TRIMMER.

Urs-trs CHARLES C. HANSON AND GEORGE B. DUNBAM, vCF LYNN, MASSACHUSETTS;SAID DUNHAM ASSIGNOR TO SAID HANSON.

SOLE-EDGE TRININIER.

SEECIFICATIONforming part of Letters Patent No. 266,257, dated October17, 1882,

Application tiled December l0, 1881.

To all trhom it may concern:

Be it known that we, CHARLES C. HANSON and GEORGE B. DUNHAM, bothcitizens of the United States, residing at Lynn, in the county of Essexand Commonwealth ot'Massachusetts,

haveinvented certain newand useful improvements in machines fortrimming, scouring, or cleaning the edges of sole-leather used in themanufacture of boots and slices, of which the to following, taken inconnection with theaccom- 5 ward and rearward therefrom, constitute theframe-work of the machine. The shaft C turns in its bearings in the armsB D. It is driven by beltpower applied to the pulley a, and it carriesthree other pulleys, Z1 c e.

3o Upon the stud-pin or journal fis arranged the loose drum g. The belth establishes communication between the drum and the pulley b, motionbeing in this manner imparted to the drum. Said belt h is covered on oneside with sand or other line gritty substance, which serves to scour orgrind the leather, as referred to hereinafter. The drum g is coveredwith rubber, so as to yield slightly to pressure applied to the belt.The randknife t' has its axis of motion concentric with the axis of thedrum g. 1t is secured to the outer end of the drum g, so as to berevolved thereby. A thin plate, m, extends downward from the end of thehorizontal arm t,and,pro

jccting slightly below the rand-knife, serves as a guard to protect theupper from being injured by the rand-knife.

The horizontal arm a has one end attached to the frame B, and at theother end it turns 5o upward to form a suitable bearing for the rod'frame B.

(Model.)

2. Said rod 2, passing through the end of the arm n, carries ou itsouter end a thin plate, 3. lhe other end of the rod enters a hole in theThe rod 2 is movable endwise in its bearings. lt is surrounded by aspiral spring, 4, one end of which bears against the frame B, and theopposite end of which bears against the fixed collar 5. The spring 4operates to push out the rod 2, so as to keep the plate 3 in closeproximity to the rand-knife. lhe collar 6o 5, striking against the endof the arm u, prevents the rod from being pushed out of its bearings.

In operation the shoe is held by the operator, the sole-edge beingpressed up against the belts passing over the yielding surface ofthedrum. The guard m presses into the randcrease between the sole andupper, and the rand-cutter operatesbetween the guard and the sole-edge,with its inner side in contact 7o with the sole, so as to cut oft' theburr or roughness left by the belt. The pressure-plate 3 bears againstthe bottom ofthe sole to keep it pressed up closely against therand-cutter. rlhe shoe is turned round by the workman to bring theentire periphery or edge of the sole to the scouring-belt. The spring4vyields sufficiently to accommodate the plate 3 to inequalities in thethickness of the sole.

Projecting horizontally from the frame B is 8o a stud-pin, 6, whichserves asajournal for the elbow-plate 7. Said plate 7 is constructedwith a slot, 8. A screw, 9, passes through -said slot into the frame B,by means of which the plate may be adjusted in an obvious manner.Secured to theplate 7 is an arm, 10, which extends outward and downward,as shown in- Fig. 3, to form a bearing for the flanged wheel 11. Saidplate 7 is further provided with a hollow boss, 12, Fig. 3, which servesas ajour- 9o nal for the cylindrical drum 13. The drum 13 and the wheel11 are constructed with their diameters equal to each other, and beingarranged, as shown in Fig. 3, with their axis of motion concentric inreference to each other they form a suitable idler, about which thescouring-belt lo is made to travel, as shown in Figs. 1 andv 2. Acollar, 14, made adjustable on the drum 13, serves to keep the edge ofthe scouring-belt close up tothe rand-knife t', while tuo the tensionot' the belt maybe modified by adjustingthe plate 7, as beforedescribed. lith in the hollow boss 12 is a shaft, 15, provided withcollars oranges 16 16, which bear against the boss, as shown, Fig. 3. Ashaft, LQ, is journaled in the collars 1li. It carries on one end acutter-knife, 19, and on the other end a pulley, 2U. Motion iscommunicated to the shaft by means ot' a belt extending from the pulley2l) to the pulley c, Fig. 1. It must now be evident that hy asemi-rotation ofthe shaft 15 (which is obvionly effected by grasping thehandle 2l) the cutter 10 may be elevated to the position shown in Fig.3. In this position it pierces the belt It, so as to cut a narrow stripott' the edge of the saine. By reversing the handle2l the cutter 19maybe withdraw within the idler. The collar 1l should then be adjustedso as to compel the belt It to travel over with its edge against therand-knife, as before described. ln this manner the working portion ot'the scouring-belt may be removed from time to time, until thc whole beltis consumed. A new helt must then be obtained.

On the opposite sideot this machine, in connection with the frame D, isanother set ot' machinery, designed lor working upon beveled edges andround "shanlis, so-called. The construction and arrangement of thismechanism diil'er from that already described in the two following`particulars, viz: The scouring-belt is molded on one side, or otherwiseshaped to lit the edge-surface ot' the intended sole; and, second, thebelt-trimming mechanism is wholly dispensed with. rllhe idler hereshown, being ot' well-known construction, is used for varying thetension of thel belt. rlhe .construction and arrangement of the other 1.rllhe combination ot' a driving-shaft, a pulley carrying arend-cutter,and a scouringbelt adapted to run in or nearly in Contact with therand-cutter.

2. The combination 0i the driving-shaft, loose drum, rand-cutter, andscouring-belt with the guard-plate m.

3. Thecombinationoftherandeutter,mounted on the loose drum, and theseouring-belt with the spring'pressure plate m.

4. The con'ibination of the driving-sham the scouring-belt, the'adjustable belt-trimming knife, and means, substantially as described,for adjusting the helt to compensate for the portion removed b v thetrim ming-knife.

rlhe combination 0f' the adjustable arm 7, having the drinn 13, and theseouringbelt.

(j. The combination of' the scouring-belt, the drum 13, and flangedwheel 1l with the independent shal't 1.8, having cutter 1f) and pulley20, and the. collar 1.4 on the drinn.

7. A device for trimming and scouring soleedges, consisting essentiallyot a main frame, a drivingshaft, a loose drum carrying a randeutter, ascouring-belt, an independent trimming-huile adapted to be revolved totrim the belt, and a movable collar t'or adjusting` the position ot' thebelt with respect to the randcutter.

In testimony whereof' we have signed this specification in presence oftwo subscribing witnesses.

CHARLES "f, IIANSON. GEORGE lll. DUNUAM.

Witnesses:

BENI. 1. PuliN'riss, Jr., C. B. TU'rTLn.

